depends what type it is
Yes.
yes but replace half the water every 2 days
A betta fish can typically live without a filter in its tank for about 2-3 days, but it is important to regularly change the water to maintain good water quality and ensure the fish's health and well-being.
Provided you have followed the basic rule of "1 inch of fish needs a minimum of 1 gallon of water" (so a Betta needs at least 3 gallons of water) and the tank has a cycled filter. (to remove deadly Ammonia and Nitrite). The fish will be perfectly OK going without food for 3 days.
Betta fish can typically live for about 2-3 days without a filter in their tank, but it is important to provide them with clean water and regular water changes to ensure their health and well-being.
Feed your betta fish cooked & de-shelled peas for 2 days instead of his/her regular food
One.
Snail do not need company so the death of the fish will not affect it in any way other than to leave more oxygen available for the snail. It will be perfectly OK for several weeks provided the water does not go bad.
Just leave it. If you really want to remove it you can, but it's just a sign of a healthy betta.
Feed him? if he refuses to eat them he's sick, but they can live for seeral days without food.
It's hard to tell without a lot of details, but maybe you are feeding her too much... :( You are probably overfeeding her. Try not feeding her for a few days- but don't worry bettas can survive without food for a whole week.
no. but if you have a unhealthy b